#menu{
    height: 60px;
    display: flex;
    /* 内部阴影 */
    box-shadow: 0 1px 1px gainsboro inset;
    opacity: 0.8;
}

.menu-div{
    width: 25%;
    display: flex;
    flex-flow: column nowrap;
    justify-content: flex-end;
    align-items: center;
}

.menu-div img{
    height: 23px;
    width: 23px;
    opacity: .7;

}
.font-menu{
    margin-top: 4px;
    font-weight: 200;
    font-size: 90%;
}